I assume the projector emits two images, one blue for the LH? and the other red for the RH? But is the image in colour? Or can the system only display monochrome? I would have thought only mono stereo images could be used. There is a better system using a horizontally polarised polarising filter for one eye and a vertically polarised polarising filter for the other. So the images may be in full colour. But the one I like uses a special screen containing an array vertical cylindrical lenses and the images is a series of narrow strips behind each lens containing picture information. An even better one was proposed by Lau in the 19th century which was an array of small lenses with a disc of picture information behind each lens so that the original wave front may be re-created (the eye cannot see phase and incoherent light is ok) The hologram method is an even nicer one.... Here the original wave front is recreated from a diffraction pattern on a plastic surface. Chris http://www.chrisspages.co.uk -----Original Message----- From: owner-photoforum@xxxxxxxxxxxxxxxxxxxxxx [mailto:owner-photoforum@xxxxxxxxxxxxxxxxxxxxxx]On Behalf Of Stephen Ylvisaker Sent: 07 May 2004 04:27 To: List for Photo/Imaging Educators - Professionals - Students Subject: Re: red/blue 3-d imagery (light question, not photography) On 5/6/04 6:27 PM, "Don Roberts" <droberts@xxxxxxxx> wrote: > Or, as many photographers do, you can hold a blue filter over one eye > and a red one over the other. It gets a little tedious but you can > relax from time to time. Put it on pause and take a break. > Don Don, That's what I had planned to do, if I had found my sample pack of Lee filters. <grin> -- Stephen Ylvisaker greyfell@xxxxxxxxxxx "Never do business with pets you don't trust." Robert Kiyosaki, author of RICH DAD, POOR DAD
